code: def unify(*indices):
      axes = set()
      src = None
      for ind in indices:
          if src is None:
              src = ind.source
          else:
              if ind.source is not None and ind.source is not src:
                  from . import ExpressionException
  
                  raise ExpressionException()
  
          axes = axes.union(ind.axes)
  
      return Indices(src, axes)
  
file_path: hail/hail/python/hail/expr/expressions/indices.py
imports: from hail.typecheck import typecheck_method, anytype, setof
  import hail
  from typing import List
label_desc: Use image node_id 5 for calling the Indices obj's underlying member method code with example usage: obj.unify() and returns: Indices